Terminal device, diagnosis system, computer readable medium, diagnostic method, and computer data signal

ABSTRACT

A terminal device includes a display unit that displays acquired image information, a receiving unit that receives an analysis position of quality unevenness in the image information, and a detection unit that detects pitch information by respectively performing frequency analysis on first and second regions containing the analysis position. The display unit displays the pitch information detected from the first region with respect to pitch information equal to or greater than a predetermined pitch length and displays the pitch information detected from the second region with respect to pitch information less than the predetermined pitch length.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is based on and claims priority under 35 USC 119 fromJapanese Patent Application No. 2016-021718 filed Feb. 8, 2016.

BACKGROUND

The present invention relates to a terminal device, a diagnosis system,computer readable medium, a diagnostic method, and computer data signal.

SUMMARY

According to an aspect of the invention, there is provided a terminaldevice including:

a display unit that displays acquired image information;

a receiving unit that receives an analysis position of qualityunevenness in the image information; and

a detection unit that detects pitch information by respectivelyperforming frequency analysis on first and second regions containing theanalysis position,

wherein the display unit displays the pitch information detected fromthe first region with respect to pitch information equal to or greaterthan a predetermined pitch length and displays the pitch informationdetected from the second region with respect to pitch information lessthan the predetermined pitch length.

BRIEF DESCRIPTION OF THE DRAWINGS

Exemplary embodiments of the present invention will be described indetail based on the following figures, wherein:

FIG. 1 is a system diagram illustrating the configuration of a bandingdiagnosis system according to an exemplary embodiment of the invention;

FIG. 2 is a block diagram illustrating a hardware configuration of aterminal device 10 according to the exemplary embodiment of theinvention;

FIG. 3 is a block diagram illustrating a functional configuration of theterminal device 10 according to the exemplary embodiment of theinvention;

FIG. 4 is a block diagram illustrating a functional configuration of aserver apparatus 12 according to the exemplary embodiment of theinvention;

FIG. 5 is a diagram illustrating an instance of information stored in apitch data storing unit 50 in FIG. 4;

FIG. 6 is a flowchart illustrating an operation of a banding diagnosissystem according to the exemplary embodiment of the invention;

FIG. 7 is a diagram illustrating an instance of a screen displayed on adisplay unit 42 of the terminal device 10 according to the exemplaryembodiment of the invention;

FIG. 8 is a diagram illustrating an instance of a banding analysis image(analysis result) displayed on the display unit 42 of the terminaldevice 10 according to the exemplary embodiment of the invention;

FIG. 9 is a diagram illustrating an instance of a display screen when abanding analysis position is designated by a user according to theexemplary embodiment of the invention;

FIG. 10 is a diagram illustrating a region in which fast Fouriertransform is executed in the banding diagnosis system according to theexemplary embodiment of the invention;

FIG. 11 is a diagram illustrating an instance of a display screen onwhich a banding analysis result is displayed according to the exemplaryembodiment of the invention;

FIG. 12 is a diagram illustrating an instance of a display screen onwhich a banding analysis result is displayed according to the exemplaryembodiment of the invention;

FIGS. 13A to 13C are diagrams illustrating instances of display screensfor describing a conversion operation for the banding analysis resultaccording to the exemplary embodiment of the invention;

FIG. 14 is a diagram illustrating an instance of a display screen onwhich the banding analysis result is displayed and is a diagramillustrating an instance in which a previous analysis result isdisplayed as a history according to the exemplary embodiment of theinvention;

FIG. 15 is a diagram illustrating an instance of a screen displayed onthe display unit 42 of the terminal device 10 and is a diagramillustrating an instance in which a comment is transmitted to the serverapparatus 12 according to the exemplary embodiment of the invention;

FIG. 16 is a diagram illustrating an instance of a display screen onwhich a banding analysis result is displayed and is a diagramillustrating an instance of a screen on which a previous analysis resultis displayed as a history and which is displayed at a coordinateposition at which “o” in FIG. 15 is input according to the exemplaryembodiment of the invention;

FIG. 17 is a diagram illustrating an instance of a display screen onwhich a banding analysis result is displayed and is a diagram whenscreen display is set as actual size display according to the exemplaryembodiment of the invention;

FIG. 18 is an expanded diagram illustrating the periphery of an areadisplay portion 76 of a banding analysis result according to theexemplary embodiment of the invention; and

FIG. 19 is a diagram illustrating an instance of a display screen onwhich a banding analysis result is displayed and is a diagramillustrating emphasized and displayed shade of banding according to theexemplary embodiment of the invention.

DETAILED DESCRIPTION

Hereinafter, exemplary embodiments of the invention will be described indetail with reference to the drawings.

FIG. 1 is a system diagram illustrating the configuration of a bandingdiagnosis system according to an exemplary embodiment of the invention.

As illustrated in FIG. 1, the banding diagnosis system according to theexemplary embodiment of the invention is configured to include aportable terminal device 10 such as a personal computer, a smart phone,or a tablet terminal device and a server apparatus 12.

Any terminal device is applicable to the invention, as long as theterminal device 10 can be connected to the server apparatus 12 through acommunication network. However, in the exemplary embodiment, thedescription will be made using a case where the terminal device 10 is anapparatus capable of acquiring image information and a tablet terminaldevice including a touch panel on which a touch input is enabled.

The terminal device 10 is carried by a service engineer (maintenancepersonnel) who maintains or repairs an image forming apparatus 14 suchas a printer which is used by an end user and is used to acquire imageinformation received from the image forming apparatus 14 and to analyzethe frequency of the acquired image information or display a bandinganalysis result obtained from a frequency analysis result acquired fromthe server apparatus 12.

The terminal device 10 and the server apparatus 12 are connected througha wireless LAN terminal 16 such as a Wi-Fi router or an Internetcommunication network 18 to transmit and receive information.

When the terminal device 10 is a mobile phone device or a smart phone,the terminal device 10 and the server apparatus 12 can also be connectedthrough a mobile phone line network to transmit and receive defectinformation.

In the banding diagnosis system according to the exemplary embodiment,when banding occurs in the image forming apparatus 14 which is a targetelectronic apparatus installed in a place of the end user, a serviceengineer goes to the place of the image forming apparatus 14 with theterminal device 10. The service man uses the terminal device 10 toacquire image information obtained by using an image painted with eachcolor of cyan (C), magenta (M), yellow (Y), and black (K) at givenconcentrations as an original and causing a reading apparatus to readthe original, and then executes bending diagnosis to specify a cause ofthe banding.

Next, a hardware configuration of the terminal device 10 in the bandingdiagnosis system according to the exemplary embodiment is illustrated inFIG. 2.

As illustrated in FIG. 2, the terminal device 10 includes a CPU 20, amemory 22 that can temporarily store data, a storage device 24 such as aflash memory, a wireless LAN interface (IF) 26 that performs wirelesscommunication with the wireless LAN terminal 16 to transmit and receivedata, an input device 28 such as a touch sensor, and a display device30. Those components are interconnected through a control bus 32.

The terminal device 10 according to the exemplary embodiment includes atouch panel 28 in which a touch sensor for detecting a touch position onthe display device 30 is provided as an input device, and thus displayis performed and input is performed by the user, using the touch panel.

The CPU 20 executes a predetermined process based on a control programstored in the memory 22 or the storage device 24 and controls anoperation of the terminal device 10. The control program can also beobtained by being downloaded through the Internet communication network18 or a mobile phone line network and provided to the CPU 20, or thecontrol program can also be provided to the CPU 20 by being stored in astorage medium such as a CD-ROM.

When the control program described above is executed, the terminaldevice 10 according to the exemplary embodiment performs an operation tobe described below and supports service engineer's operation forspecifying the cause of the banding.

FIG. 3 is a block diagram illustrating a functional configuration of theterminal device 10 which is realized by the execution of the controlprogram.

As illustrated in FIG. 3, the terminal device 10 according to theexemplary embodiment includes an image data acquisition unit 34, afrequency analysis unit 36, a control unit 38, an image data storingunit 40, a storing unit 41, a display unit 42, a communication unit 44,and an analysis position receiving unit 46.

The image data acquisition unit 34 acquires image data of each color ofcyan (C), magenta (M), yellow (Y), and black (K) transmitted from theimage forming apparatus 14 which is an analysis target apparatus.

The display unit 42 displays various kinds of data based on the controlof the control unit 38.

The communication unit 44 communicates with the server apparatus 12which is an external device.

The analysis position receiving unit 46 receives a coordinate positionas an analysis position at which banding analysis is executed throughdesignation of the user. The banding analysis is executed centering onthe analysis position.

The image data storing unit 40 stores plural pieces of image dataobtained by causing the reading apparatus to read print chart originalsof CMYK and information regarding the period and frequency of an imagefor which the image data is obtained by the frequency analysis unit 36.

The storing unit 41 stores the image data, pitch information detectedfrom the image data through analysis of the frequency analysis unit 36,and a coordinate position serving as the analysis position detected bythe frequency analysis unit 36 as history information in associationtherewith.

The frequency analysis unit 36 executes fast Fourier transform (FFT) onthe image data acquired by the image data acquisition unit 34 in atransport direction in a region containing the analysis positionreceived by the analysis position receiving unit 46.

The control unit 38 executes control such that the image data of thecolors acquired by the image data acquisition unit 34 is displayed onthe display unit 42. Then, a banding analysis process of analyzingquality unevenness (banding) is executed on the colors of CMYK insequence.

In the exemplary embodiment, to analyze the quality unevenness (banding)of the image output by the image forming apparatus such as a printer,plural pieces of image data obtained by using an image (print chart)painted with only one color of CMYK at a given concentration and outputto a sheet by the image forming apparatus 14 as an original and causingthe reading apparatus to read the print chart originals of CMYK are setas targets of the banding analysis process. The image data which is thetarget of the banding analysis process may be image data transmittedfrom the image forming apparatus 14 or the server apparatus 12 or may beimage data preserved in advance in the image data storing unit 40 of theterminal device 10.

As illustrated in FIG. 10, the control unit 38 executes control suchthat a designated region 64 which is a line containing an analysisposition A received by the analysis position receiving unit 46 and otherdesignated regions 66 are displayed with shade in a mask manner.Specifically, the designated region 64 is displayed with a brightercolor than the undesignated regions 66. Accordingly, the analysisposition A is expressed clearly. Control is executed such that the fastFourier transform is executed on the image data of regions (ranges) in asmall range 100 which is a first region centering on the analysisposition A and contains the analysis position A, an intermediate range200 which is a second region and contains the analysis position A, and alarge range 300 which is a third region and contains the analysisposition A, and the pitch information is detected from the informationregarding the frequency and the period of the image which is eachanalysis result. Control is executed such that information regarding thefrequency and the period of the image obtained by the frequency analysisunit 36 is stored in the image data storing unit 40 along with the imagedata. Then, the control unit 38 executes control such that a bandinganalysis result obtained from the analysis result of the fast Fouriertransform is displayed on the display unit 42 which is a touch panel.

Specifically, when the user executes a touch operation of touching aregion in which quality unevenness is estimated to occur with his or herfinger in the banding analysis result displayed on the display unit 42which is the touch panel, the control unit 38 receives regiondesignation executed only within the ranges, the small range, 100, theintermediate range 200, and the large range 300, centering on thedesignated analysis position A based on the touch operation by the user.

Then, the control unit 38 instructs the frequency analysis unit 36 toperform the fast Fourier transform of analyzing frequency in thetransport direction in a designated range (region). Therefore, thefrequency analysis unit 36 performs the fast Fourier transform in thetransport direction with respect to a frequency component included inthe designated region.

The control unit 38 detects pitch information from the analysis resultof the fast Fourier transform in the frequency analysis unit 36 andextracts a pitch of a component predicted as a cause of banding.

The control unit 38 transmits the pitch information regarding thecomponent predicted as the cause of the acquired banding to the serverapparatus 12 through the communication unit 44 along with a model nameof the image forming apparatus 14, model information such as a serialnumber, and operation state information indicating an operation state ofthe image forming apparatus 14. Specifically, the operation stateinformation can include information regarding a kind of use sheet andinformation regarding whether the acquired image is cyan (C), magenta(M), yellow (Y), or black (K). In this way, the control unit 38transmits the pitch information due to the information regarding thefrequency and the period obtained by the frequency analysis unit 36 tothe server apparatus 12 through the communication unit 44.

The server apparatus 12 extracts the pitch information of the image datatransmitted from the terminal device 10, retrieves the cause componentof banding from the extracted pitch information, and transmits the causecomponent of banding to the terminal device 10.

Then the control unit 38 executes control such that informationregarding the cause component of banding extracted based on the pitchinformation and received from the server 12 is displayed as a bandinganalysis result on the display unit 42.

When there are plural banding analysis results received from the serverapparatus 12, the control unit 38 executes control such that the bandinganalysis results are preferentially received and displayed in order ofgreater banding on the display unit 42.

Here, the frequency analysis unit 36 detects the frequencies and theperiods of the small range 100, the intermediate range 200, and thelarge range 300 and detects the pitch information based on theinformation regarding the frequencies and the periods. The control unit38 preferentially displays the pitch information and the cause componenton a screen based on an optimum analysis result among all of theanalysis results of the small range 100, the intermediate range 200, andthe large range 300.

Here, the smaller the analysis region is, the better precision of theanalysis result is. However, when the frequency and the period are large(when a pitch is large), a result may not be appropriately obtained inthe small range 100 or the intermediate range 200 in some cases. Whenthe large range is sufficiently larger than the small range in theanalysis region and the analysis is executed by moving the analysisregion only in a sub-scanning direction (a time-axis direction or atransport direction) with a main scanning direction fixed, the analysisregion is not moved in the sub-scanning direction in the large range.Therefore, a detected long period pitch is not changed in some cases.However, since the analysis region is smaller than an image size in thesmall range, the analysis can be executed by changing the sub-scanningdirection. Therefore, the analysis range is minutely tracked and adetected pitch is changed according to a location. That is, after all ofthe regions of the small range 100, the intermediate range 200, and thelarge range 300 are analyzed, the optimum analysis result ispreferentially extracted.

The control unit 38 has an adjustment display function of executingcontrol such that the shades of the acquired image information andanalysis result on a display screen are adjusted and displayed on thedisplay unit 42. The control unit 38 has an operation lock function ofexecuting control such that the display unit 42 is not operated. Thecontrol unit 38 has a movement lock function of executing control suchthat display positions of the image information and the analysis resulton the display unit 42 are not moved.

Next, a functional configuration of the server apparatus 12 in thebanding analysis system according to the exemplary embodiment will bedescribed with reference to the block diagram of FIG. 4.

As illustrated in FIG. 4, the server apparatus 12 according to theexemplary embodiment includes a communication unit 47, a control unit48, a pitch data storing unit 50, and an analysis data storing unit 52.

As illustrated in FIG. 5, the pitch data storing unit 50 stores pitchinformation regarding the pitch of a component used in the image formingapparatus 14 and information regarding a cause component of bandingestimated from the pitch for each model.

The analysis data storing unit 52 stores a previously acquired bandinganalysis image, a coordinate position which is an analysis position atwhich the analysis image is acquired, the analysis result, andinformation regarding an operation state or the like of the apparatus atthe time of analysis for each model.

When the pitch information of the analysis image is received from theterminal device 10, the control unit 48 extracts the corresponding pitchinformation among plural pieces of data stored in the pitch data storingunit 50, detects components which are the cause components of bandingbased on the pitch information, and transmits the componentspreferentially from the component which has a higher possibility ofbeing the cause component of banding to the terminal device 10 via thecommunication unit 47.

In the exemplary embodiment, the terminal device 10 executes the fastFourier transform on the image data and transmits the pitch informationbased on the information regarding the frequency and the period of theimage data to the server apparatus 12, as described above. However, thefast Fourier transform may be executed on the side of the serverapparatus 12.

In this case, the server apparatus 12 includes the frequency analysisunit 36, image data is transmitted from the terminal device 10 to theserver apparatus 12 without transform, and the fast Fourier transform isexecuted on the image data in the server apparatus 12.

Next, an operation of the banding diagnosis system according to theexemplary embodiment will be described with reference to the flowchartof FIG. 6 and instances of screens displayed on the display unit 42 ofthe terminal device 10 in FIGS. 7 to 12.

An image (print chart) painted with only one color of CMYK at a givenconcentration and output to a sheet by the image forming apparatus 14serving as a target apparatus which is a measurement target in theterminal device 10 is used as an original, the image data obtained bycausing the reading apparatus to read the print chart original isacquired in the terminal device 10, and a banding analysis process isexecuted.

Specifically, the terminal device 10 has a function of executing thebanding analysis process on the image data of each color of CMYK. Thus,when the banding analysis process is executed, as illustrated in FIG. 7,the display unit 42 displays a banding analysis execution screen.

An “analysis start” button 54 for starting the analysis and a “cancel”button 56 are displayed on the banding analysis screen. When the“cancel” button 56 is pressed, the banding analysis process iscancelled. When the “analysis start” button 54 is pressed, the imagedata acquisition unit 34 acquires the image data of each color of CMYK(step S101), the banding analysis process is executed in sequence, abanding analysis image 1 illustrated in FIG. 8 is displayed on thedisplay unit 42 (step S102).

In the banding analysis image 1 illustrated in FIG. 8, as illustrated inFIG. 9, when the user executes a touch operation at a spot at whichquality unevenness is estimated to occur, the analysis position A isreceived (step S103). At this time, the designated region 64 which is aline containing the analysis position A on the display screen of thebanding analysis image 1 and the undesignated regions 66 are displayedwith gray scale in a mask manner, for instance.

As illustrated in FIG. 10, the fast Fourier transform is executed on theimage data of the ranges (regions), the small range 100 containing thereceived analysis position A, the intermediate range 200 larger than thesmall range 100, and the large range 300 larger than the intermediaterange 200 (step S104).

The pitch information is detected from the information regarding thefrequencies and the periods of the ranges (regions) on which the fastFourier transform is performed and the pitch information of the rangesis transmitted to the server apparatus 12 (step S105).

Then, in the server apparatus 12, information is retrieved in the pitchdata storing unit 50 based on the pitch information of the receivedimage data (step S106).

Then, the server apparatus 12 transmits the information regarding thepitch, the cause component of banding, and the like retrieved based onthe pitch information to the terminal device 10 (step S107).

Then, the terminal device 10 receives the information regarding thepitch, the cause component of banding, and the like transmitted from theserver apparatus 12 (step S108). As illustrated in FIG. 11, a pitch Pdetected on the designated region 64 of the banding analysis image 1 isrepeatedly displayed (step S109). Here, the same pitch as the pitch Pdisplayed in the designated region 64 is displayed in a pitch displayregion 67 at the end of the display unit 42. Scales M are displayed inthe lateral direction (X axis direction) and the vertical direction (Yaxis direction) in the circumference of the banding analysis image 1.Thus, the length of the pitch is viewed by comparing the scales M to thepitch P.

When the pitch P is repeatedly displayed on the designated region 64 andthe pitch P displayed in the pitch display region 67 is further touched,as illustrated in FIG. 12, the cause component of banding transmittedbased on the pitch information displayed in the pitch display region 67is displayed in a pop-up manner in a component extraction and displayportion 69 (step S110). FIG. 12 illustrates an image example in whichthe component extraction and display portion 69 is detected as a pitchof 45 mm from the analysis result in the frequency analysis unit 36 andthe cause of banding is extracted and displayed as a “developinghousing” from the information stored in the pitch data storing unit 50of the server apparatus 12.

When a button for “try to exchange” in the component extraction anddisplay portion 69 is pressed, the analysis image, the analysiscoordinates which are the analysis position, the analysis result,apparatus information, and the like are transmitted along with apparatusinformation from the terminal device 10 to the server apparatus 12 to bestored in the analysis data storing unit 52. When the button for “try toexchange” is not pressed, only the analysis coordinates are transmittedalong with the apparatus information to the server apparatus 12 to bestored in the analysis data storing unit 52.

Next, examples of display screens used to describe an operation of thebanding diagnosis system according to the exemplary embodiment of theinvention will be described in more detail.

A development button 68 is displayed on the lower side of the pitchdisplay region 67 of the display screen of the banding analysis image 1of the terminal device 10.

When the development button 68 is pressed on the display screen of FIG.13A, plural pieces of other pitch information analyzed and detected atthe analysis position A are displayed in the pitch display region 67, asillustrated in FIG. 13B. That is, the pitch information of other regions(ranges) of the analysis position A is displayed in parallel in thetransport direction from the side of the banding analysis image in orderfrom the component which has a higher possibility of being the cause ofbanding, for instance. By displaying the plural pitches in parallel inthis way, the pitches are easily compared and a minute differencebetween the pitches is viewed. As illustrated in FIG. 13C, when thepitches are being displayed in the pitch display region 67 and, forinstance, a pitch P2 is selected, the selected pitch P2 is repeatedlydisplayed in the designated region 64.

FIG. 14 illustrates an instance in which history information of thebanding analysis is displayed. Specifically, when an analysis historydisplay button (not illustrated) is provided and the analysis historydisplay button is pressed, data for requesting to transmit an analysishistory is transmitted from the terminal device 10 to the serverapparatus 12, information regarding a coordinate position B which is apreviously acquired analysis position stored in the analysis datastoring unit 52, an analysis result at the coordinate position B, and anoperation state of the apparatus at the time of analysis is extracted inthe server apparatus 12, the information is transmitted to the terminaldevice 10, the previously analyzed coordinate position B is displayedwith a different color from the analysis position A. When the coordinateposition B is touched, a component extraction and display portion 69which is an analysis result at the time coordinate position B isdisplayed in a pop-up manner. A banding analysis image at the coordinateposition B or information regarding an operation state of the apparatusat the time of analysis may be displayed.

FIG. 15 illustrates an instance of a screen displayed on the displayunit 42 of the terminal device 10 when banding analysis is executed anda component is exchanged. Here, whether the banding is improved byexchanging the cause component specified by the banding analysis resultin information regarding an analysis target apparatus is transmitted tothe server apparatus 12. When the banding is improved, an “∘” button 78is pressed. When the banding is not improved, an “X” button 80 ispressed.

When the “◯” button 78 in FIG. 15 is pressed, a coordinate position Cwhich is an analysis position at which the “◯” button 78 is pressedamong the previously analyzed analysis positions (coordinate positions)is displayed with a different color from the analysis position A and thecoordinate position B, as illustrated in FIG. 16, at the time of displayof the history information of subsequent banding analysis.

The coordinate position C may be displayed in an emphasis manner. Thatis, since the analysis result is matched at the coordinate position C,the display can be clarified and analysis priority of the data can beraised. The invention is not limited to the case in which whether thebanding is improved is transmitted to the server apparatus 12, but ananalysis position when the user determines that there is a highpossibility of being a cause of banding may be clarified and the storeddata may be selected.

The entire original read by the reading apparatus is displayed on thedisplay unit 42. However, by pressing an equivalent size button 70displayed on the banding analysis image, as illustrated in FIG. 17, abanding analysis result of the display unit 42 can be displayed with anactual size equivalent to the size of the print chart original.Accordingly, the banding analysis image 1 and the actual print chartoriginal are compared to be viewed. At this time, a touch lock button(not illustrated) is provided to stop a touch function (operationfunction) so that the terminal device 10 does not erroneously operatewhen the display unit 42 is erroneously touched. At this time, amovement lock button (not illustrated) is provided to cause the displayposition of the banding analysis image 1 not to be moved horizontallyand vertically.

As illustrated in FIGS. 17 and 18, the display unit 42 displays an areadisplay portion 76 in which a selection range 74 indicating a displayrange of the display unit 42 in an entire region 72 containing thedesignated region 64 of the banding analysis image and the undesignatedregions 66 is displayed. The selection range 74 is displayed to bepartitioned by a frame in the entire region 72. Accordingly, a region inwhich the analysis result is displayed with respect to the print chartoriginal is viewed.

As illustrated in FIG. 19, the shade of the banding analysis image(banding analysis result) can be adjusted to be displayed on the displayunit 42. Specifically, there is provided a contrast switch button (notillustrated) displayed in an emphasis mode in which, for example, thecontrast of the banding analysis image is emphasized and black and whitedisplay by saturation 0 is realized for easy view. When the contrastswitch button is pressed, the original banding analysis image and theemphasis mode are switched to be displayed.

[Modification Example]

In the foregoing embodiment, the case in which the operation based onthe pitch information detection is executed on the side of the serverapparatus 12 has been described, but the invention is not limitedthereto. The operation may be executed on the side of the terminaldevice 10.

In the foregoing embodiment, the case in which the terminal device 10 isa table terminal device has been described, but the invention is notlimited thereto. For instance, when an operation panel of the imageforming apparatus 20 is configured to be attachable/detachable to/from amain body and communicable with the server apparatus 12, and have abuilt-in image information acquisition function, the operation panel maybe used as a terminal device.

In the foregoing embodiment, the fast Fourier transform is executed onthe small range 100 centering on the analysis position A, theintermediate range 200, and the large range 300 in the designated region64 to extract the information regarding the frequencies and the periods,but the invention is not limited thereto. The information may beextracted in one region or two regions, or may be extracted in three ormore divided regions.

What is claimed is:
 1. A terminal device comprising: at least onehardware processor configured to implement: controlling a display unitthat displays acquired image information; a receiving unit that receivesan analysis position of quality unevenness in the image information; adetection unit that detects pitch information by respectively performingfrequency analysis on first and second regions containing the analysisposition; and controlling the display unit to display first pitchinformation and second pitch information in parallel in a transportdirection, wherein the first pitch information is detected from thefirst region, wherein the second pitch information is detected from thesecond region, wherein the first region and the second region are withina same band in the image information, and the analysis position isselected by a user, and wherein the at least one hardware processor isfurther configured to implement: receiving the user selection of theanalysis position; controlling display of the pitch information detectedfrom the first region as an analysis result of analyzing the firstregion of the band in response to a user selection of the first region;and controlling display of the pitch information detected from thesecond region as an analysis result of analyzing the second region ofthe band, without analyzing the first region of the band in response toa user selection of the second region.
 2. The terminal device accordingto claim 1, wherein the at least wherein one hardware processor isfurther configured to control the display unit to superimposedly displaythe pitch information, detected by the detection unit, on the imageinformation.
 3. The terminal device according to claim 2, wherein the atleast one hardware processor is further configured to control thedisplay unit to switch display between the first pitch informationdetected from the first region and the second pitch information detectedfrom the second region through an operation by an operator.
 4. Theterminal device according to claim 3, wherein the at least one hardwareprocessor is further configured to implement: a storing unit that storesinformation regarding an analysis target apparatus, informationregarding a component included in the analysis target apparatus, andpitch information regarding the component, wherein the at least onehardware processor is further configured to control the display unit todisplay a cause component of quality unevenness from the informationstored in the storing unit based on the pitch information detected bythe detection unit.
 5. The terminal device according to claim 4, whereinthe at least one hardware processor is further configured to control thedisplay unit to execute display such that a region containing theanalysis position received by the receiving unit and another region aredifferent in color tone.
 6. The terminal device according to claim 3,wherein the at least one hardware processor is further configured tocontrol the display unit to execute display such that a regioncontaining the analysis position received by the receiving unit andanother region are different in color tone.
 7. The terminal deviceaccording to claim 2, wherein the at least one hardware processor isfurther configured to implement: a storing unit that stores informationregarding an analysis target apparatus, information regarding acomponent included in the analysis target apparatus, and pitchinformation regarding the component, wherein the at least one hardwareprocessor is further configured to control the display unit to display acause component of quality unevenness from the information stored in thestoring unit based on the pitch information detected by the detectionunit.
 8. The terminal device according to claim 7, wherein the at leastone hardware processor is further configured to control the display unitto execute display such that a region containing the analysis positionreceived by the receiving unit and another region are different in colortone.
 9. The terminal device according to claim 2, wherein the at leastone hardware processor is further configured to control the display unitto execute display such that a region containing the analysis positionreceived by the receiving unit and another region are different in colortone.
 10. The terminal device according to claim 1, wherein the at leastone hardware processor is further configured to control the display unitto switch display between the first pitch information detected from thefirst region and the second pitch information detected from the secondregion through an operation by an operator.
 11. The terminal deviceaccording to claim 10, wherein the at least one hardware processor isfurther configured to implement: a storing unit that stores informationregarding an analysis target apparatus, information regarding acomponent included in the analysis target apparatus, and pitchinformation regarding the component, wherein the at least one hardwareprocessor is further configured to control the display unit to display acause component of quality unevenness from the information stored in thestoring unit based on the pitch information detected by the detectionunit.
 12. The terminal device according to claim 11, wherein the atleast one hardware processor is further configured to control thedisplay unit to execute display such that a region containing theanalysis position received by the receiving unit and another region aredifferent in color tone.
 13. The terminal device according to claim 10,wherein the at least one hardware processor is further configured tocontrol the display unit to execute display such that a regioncontaining the analysis position received by the receiving unit andanother region are different in color tone.
 14. The terminal deviceaccording to claim 1, wherein the at least one hardware processor isfurther configured to implement: a storing unit that stores informationregarding an analysis target apparatus, information regarding acomponent included in the analysis target apparatus, and pitchinformation regarding the component, wherein the at least one hardwareprocessor is further configured to control the display unit to display acause component of quality unevenness from the information stored in thestoring unit based on the pitch information detected by the detectionunit.
 15. The terminal device according to claim 14, wherein the atleast one hardware processor is further configured to control thedisplay unit to execute display such that a region containing theanalysis position received by the receiving unit and another region aredifferent in color tone.
 16. The terminal device according to claim 1,wherein the at least one hardware processor is further configured tocontrol the display unit to execute display such that a regioncontaining the analysis position received by the receiving unit andanother region are different in color tone.
 17. The terminal deviceaccording to claim 1, wherein the at least one hardware processor isfurther configured to implement: controlling the display of the pitchinformation detected from the first region along with a first suggestedtroubleshooting option for resolving the quality unevenness in responseto the analysis result of analyzing the first region; and controllingthe display of the pitch information detected from the second regionalong with a second suggested troubleshooting option for resolving thequality unevenness in response to the analysis result of analyzing thesecond region, wherein the first suggested troubleshooting option isdifferent than the second suggested troubleshooting option.
 18. Theterminal device according to claim 17, wherein the at least one hardwareprocessor is further configured to implement: determining whether thequality unevenness was resolved after an implementation of any of thefirst suggested troubleshooting option and the second suggestedtroubleshooting option, and in response to quality unevenness remainingafter the implementation, to control the analysis position selected bythe user to be highlighted in a different manner than other analysispositions selected by the user on a display of the image information.19. A diagnosis system comprising: a server apparatus; and a terminaldevice comprising at least one hardware processor configured toimplement: controlling a display unit that displays acquired imageinformation; a receiving unit that receives an analysis position ofquality unevenness in the image information; a detection unit thatrespectively performs frequency analysis on first and second regionscontaining the analysis position to detect pitch information; andcontrolling the display unit to display first pitch information andsecond pitch information in parallel in a transport direction, whereinthe first pitch information is detected from the first region, whereinthe second pitch information is detected from the second region, whereinthe first region and the second region are within a same band in theimage information, and the analysis position is selected by a user, andwherein the at least one hardware processor is further configured toimplement: receiving the user selection of the analysis position;controlling display of the pitch information detected from the firstregion as an analysis result of analyzing the first region of the bandin response to a user selection of the first region; and controllingdisplay of the pitch information detected from the second region as ananalysis result of analyzing the second region of the band, withoutanalyzing the first region of the band in response to a user selectionof the second region.
 20. A non-transitory, computer readable mediumstoring a program causing a computer to execute a process fordiagnosing, the process comprising: displaying acquired imageinformation; receiving an analysis position of quality unevenness in theimage information; detecting pitch information by respectivelyperforming frequency analysis on first and second regions containing theanalysis position; and displaying first pitch information and secondpitch information in parallel in a transport direction, wherein thefirst pitch information is detected from the first region, wherein thesecond pitch information is detected from the second region, wherein thefirst region and the second region are within a same band in the imageinformation, and the analysis position is selected by a user, andwherein the process further comprises: receiving the user selection ofthe analysis position; controlling display of the pitch informationdetected from the first region as an analysis result of analyzing thefirst region of the band in response to a user selection of the firstregion; and controlling display of the pitch information detected fromthe second region as an analysis result of analyzing the second regionof the band, without analyzing the first region of the band in responseto a user selection of the second region.
 21. A diagnostic methodcomprising: implementing by at least one hardware processor: controllingdisplay of acquired image information; receiving an analysis position ofquality unevenness in the image information; detecting pitch informationby respectively performing frequency analysis on first and secondregions containing the analysis position; and controlling display offirst pitch information and second pitch information in parallel in atransport direction, wherein the first pitch information is detectedfrom the first region, and wherein the second pitch information isdetected from the second region and wherein the first region and thesecond region are within a same band in the image information, and theanalysis position is selected by a user, and the at least one hardwareprocessor is further configured to implement: receiving the userselection of the analysis position; controlling display of the pitchinformation detected from the first region as an analysis result ofanalyzing the first region of the band in response to a user selectionof the first region; and controlling display of the pitch informationdetected from the second region as an analysis result of analyzing thesecond region of the band, without analyzing the first region of theband in response to a user selection of the second region.